Bookmakers William Hill have Stephen Hawking as the current favourite, with odds of 7/4, followed by Nobel-prize winning chemist Dorothy Hodgkin 4/1.

Ada Lovelace, Alan Turing, Alexander Fleming and electromagnetic pioneer Michael Faraday have odds of 5/1 and Rosalind Franklin, who made important contributions to the understanding of DNA, is at 6/1.

Personally I don't think it should be Hawking. Out of the people on the list of best odds I think it should be either Hodgkin or Franklin as their work saved the most lives.